Fuhjythy Bluetooth 5.0 Amplifier Power Audio Board 30W Mono Stage Power Amplifier Board, U Disk Decoder, with AUX Line

3. After the test is completed, the battery can be connected to the power supply after receiving the goods (the 24V battery is not allowed, because the battery may exceed 25V after being fully , and the capacitor on the board is 25V, there is a risk of explosion!) 2. 24V 3A power supply, the output power can reach up to 30W 8 ohm continuous power! It can be connected to 30W bass + 10W tweeter (4 ohm speaker may be protected) (full volume may also be protected) 1. The power supply of this power amplifier board requires 12-24V 3A DC regulated switching power supply (testing with battery and charger, transformer and AC switching power supply is not guaranteed) 4. It is not possible to connect the 24V battery of a large truck, because the charging voltage reaches 28-32V when the truck is on fire, and it burn!